background preloader

HDMI

HDMI
HDMI (High-Definition Multimedia Interface) is a proprietary audio/video interface for transferring uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device.[1] HDMI is a digital replacement for analog video standards. HDMI implements the EIA/CEA-861 standards, which define video formats and waveforms, transport of compressed, uncompressed, and LPCM audio, auxiliary data, and implementations of the VESA EDID.[2][3] CEA-861 signals carried by HDMI are electrically compatible with the CEA-861 signals used by the digital visual interface (DVI). Several versions of HDMI have been developed and deployed since initial release of the technology but all use the same cable and connector. History[edit] Specifications[edit] Audio/video[edit] Uncompressed video[edit] Communication channel protocols[edit] DDC[edit] TMDS[edit] Related:  Abbreviations & their meaning

WIMP (computing) Windows, icons, menus and pointer. Though the term has fallen into disuse, some use it incorrectly as an approximate synonym for graphical user interface (GUI). Any interface that uses graphics can be called a GUI, and WIMP systems derive from such systems. However, while all WIMP systems use graphics as a key element (the icon and pointer elements), and therefore are GUIs, the reverse is not true. Some GUIs are not based in windows, icons, menus, and pointers. WIMP interaction was developed at Xerox PARC (see Xerox Alto, developed in 1973) and popularized with Apple's introduction of the Macintosh in 1984, which added the concepts of the "menu bar" and extended window management.[8] In a WIMP system: This style of system improves human–computer interaction (HCI) by emulating real-world interactions and providing better ease of use for non-technical people—both novice and power users[citation needed]. Jump up ^ Markoff, John (February 16, 2009). Alistair D.

HDCP High-bandwidth Digital Content Protection (HDCP; commonly, though incorrectly, referred to as High-Definition Copy(right) Protection) is a form of digital copy protection and digital rights management developed by Intel Corporation[1] to prevent copying of digital audio and video content as it travels across connections. Types of connections include DisplayPort (DP), Digital Visual Interface (DVI), and High-Definition Multimedia Interface (HDMI), as well as less popular, or now defunct, protocols like Gigabit Video Interface (GVIF) and Unified Display Interface (UDI). The system is meant to stop HDCP-encrypted content from being played on unauthorized devices or devices which have been modified to copy HDCP content.[2][3] Before sending data, a transmitting device checks that the receiver is authorized to receive it. If so, the transmitter encrypts the data to prevent eavesdropping as it flows to the receiver.[4] Specification[edit] HDCP uses three systems:[5] Uses[edit] Source Sink Repeater

Digital Phosphor Oscilloscopes/Digital Serial Analyzers Features & Benefits On All Four Channels Simultaneously 20, 16, 12.5, 8, 6, and 4 GHz Bandwidth Models Up to 50 GS/s Real-Time Sample Rate Up to 200 Megasamples Record Length with MultiView Zoom™ Feature for Quick Navigation Fastest Waveform Capture Rate with >300,000 wfms/s Maximum per Channel Digital Serial Analyzer Models with Dedicated Configuration for High-Speed Serial Design and Compliance Testing Enhanced Bandwidth to the Probe Tip Extended to Support Multiple Bandwidth Steps for Advanced Signal Integrity. Applications Signal Integrity, Jitter, and Timing Analysis Verification, Debug, and Characterization of Sophisticated Designs Debugging and Compliance Testing of Serial Data Streams for Telecom and Datacom Industry Standards Investigation of Transient Phenomena Spectral Analysis Unmatched Performance for Greater Insight Into Your Design to Get Your Work Done Faster Unmatched Acquisition Performance User-selectable bandwidth limiting choices Isolate glitches down to 100-ps wide

Post-WIMP The reason WIMP interfaces have become so prevalent since their conception at Xerox PARC is that they are very good at abstracting work-spaces, documents, and their actions. Their analogous paradigm to documents as paper sheets or folders makes WIMP interfaces easy to introduce to other users.[1] Furthermore their basic representations as rectangular regions on a 2D flat screen make them a good fit for system programmers, thus favouring the abundance of commercial widget toolkits in this style. However WIMP interfaces are not optimal for working with complex tasks such as computer-aided design, working on large amounts of data simultaneously, or interactive games. WIMPs are usually pixel-hungry, so given limited screen real estate they can distract attention from the task at hand. Thus, custom interfaces can better encapsulate workspaces, actions, and objects for specific complex tasks. Examples[edit] See also[edit] References[edit]

DDC The standard was created by the Video Electronics Standards Association (VESA). Overview[edit] The DDC suite of standards aims to provide a "plug and play" experience for computer displays. DDC1 and DDC2B/Ab/B+/Bi protocols are a physical link between a monitor and a video card, which was originally carried on either two or three pins in a 15-pin analog VGA connector. Extended display identification data (EDID) is a companion standard; it defines a compact binary file format describing the monitor's capabilities and supported graphics modes, stored in a read-only memory (EEPROM) chip programmed by the manufacturer of the monitor. The first version of the DDC standard was adopted in August 1994. DDC version 2, introduced in April 1996, split EDID into a separate standard and introduced the DDC2B+ protocol. The DDC standard has been superseded by E-DDC in 1999. Physical link[edit] DDC changed the purpose of these pins to incorporate a serial link interface. DDC1[edit] DDC2 [edit] DDC/CI[edit]

HDMI Compliance Test Software Features & Benefits Applications Design and Validation of HDMI 1.4a/b Physical Layer HDMI Physical Layer Compliance Testing Engineers designing and validating the HDMI physical layer of their devices face constant pressure to improve efficiency. HDMI 1.4a/b introduces Automotive HDMI (Type E) in addition to Mobile HDMI (Type D), HEAC, 3D HDMI, 4K × 2K patterns, and new Calorimetric patterns, all operating up to 3.4 Gb/s. Reliable and Dependable Results Complete Sink Test Automation. TDSHT3 embeds the HDMI CTS 1.4a/b compliance test procedures, including the software clock recovery (SoftCRU), ensuring dependable results. Option HT3-DS enables the innovative Direct Synthesis Solution for Sink and Cable eye-diagram testing. Faster Validation Cycles The unparalleled automation offered on the TDSHT3 and HT3-DS enables faster validation.

Internet protocol suite The Internet protocol suite is the computer networking model and set of communications protocols used on the Internet and similar computer networks. It is commonly known as TCP/IP, because its most important protocols, the Transmission Control Protocol (TCP) and the Internet Protocol (IP), were the first networking protocols defined in this standard. Often also called the Internet model, it was originally also known as the DoD model, because the development of the networking model was funded by DARPA, an agency of the United States Department of Defense. TCP/IP provides end-to-end connectivity specifying how data should be packetized, addressed, transmitted, routed and received at the destination. The TCP/IP model and related protocol models are maintained by the Internet Engineering Task Force (IETF). History[edit] Early research[edit] Diagram of the first internetworked connection Specification[edit] Adoption[edit] Key architectural principles[edit] Abstraction layers[edit] Link layer[edit]

EDID EDID structure versions range from v1.0 to v1.4; all these define upwards-compatible 128-byte structures. EDID structure v2.0 defined a new 256-byte structure, but subsequently has been deprecated and replaced by v1.3.[citation needed] HDMI 1.0 – 1.3c uses EDID structure v1.3.[1] DisplayID is a standard targeted to replace EDID and E-EDID extensions with a uniform format suited for both PC monitor and consumer electronics devices. Background[edit] The channel for transmitting the EDID from the display to the graphics card is usually the I²C bus, defined in DDC2B (DDC1 used a different serial format which never gained popularity). Before DDC and EDID were defined, there was no standard way for a graphics card to know what kind of display device it was connected to. Many software packages can read and display the EDID information, such as read-edid[3] for Linux and DOS, PowerStrip[4] for Microsoft Windows and XFree86 for Linux and BSD unix. Enhanced EDID (E-EDID)[edit] Revision history[edit]

Automated Video Measurement Set Features & Benefits Automates Test of Consumer HDTV Video DevicesAutomates VESA Compliance Test for PC Graphics DevicesAutomates Testing of Multimedia PCFast, Accurate, and Reliable Video MeasurementsComprehensive Component Analog Video Signal AnalysisSDTV, HDTV, and RGBHV Component Analog Format SupportPicture, Vector, and Waveform DisplaysCompanion Test Signal PackagesTime-saving Test UtilitiesPass/Fail Limit TestingAutomatic Report GeneratorVideo Measurement AccessoriesComplete 1 GHz Bandwidth, 4-channel DPO FunctionalityLarge 12.1 in. XGA Touch Screen DisplayGPIB Remote ControlLAN ConnectivityCD-R/W Drive (DVD Read-only)Pinpoint™ TriggeringTechnology-specific Software Options for Jitter and Timing Measurements, Power Measurements, Serial Data, Ethernet, and USB 2.0 Compliance Testing Applications Design ValidationStandards Compliance TestingQuality ControlInstallation and TroubleshootingAutomated Manufacturing TestOff-air Video Systems Test Summary Pass/Fail Test Results Display.

Related: